An analytical review of the current situation of Christian philosophyin Russia is presented, aiming to explain, why so much expectedrenaissance of this philosophy in the post-soviet period did nottake place. Russian philosophy is shown to be structurally a synthesis of the Western conceptual framework and Eastern Christian discourse,the latter being, in turn, the synthesis of patristic and asceticdiscourse, including two basic paradigms, deification (theosis)and sacralisation, and having energy as its dominant category.The key role of ascetic experience in Eastern Christian discourseis stressed. Topical problems related to the study of thisexperience, as well as concepts of energy and theosis, are discussed.